Ejector

Abstract

The utility model belongs to the technical field of bed frames, and discloses an ejection device, which includes a bearing assembly and a mounting assembly; at least two groups of transmission assemblies, which are arranged between the bearing assembly and the mounting assembly, each group of transmission assemblies includes a first transmission member and a second transmission member that are cross-rotatably connected, the root of the first transmission member is rotationally connected to the mounting assembly, the top of the first transmission member is slidably arranged on the bearing assembly, the root of the second transmission member is slidably arranged on the mounting assembly, and the top of the second transmission member is rotationally connected to the bearing assembly; a transmission rod, the first transmission member of each group of transmission assemblies is rotationally connected to the transmission rod, or the second transmission member of each group of transmission assemblies is rotationally connected to the transmission rod; a driving member, which is rotationally connected between the mounting assembly and the transmission rod, and when the driving member drives the transmission rod, the bearing assembly can approach or move away from the mounting assembly. The bearing assembly of the utility model is supported by at least two groups of transmission assemblies, and has high stability.

Description

Technical Field

[0001] The utility model relates to the technical field of bed frames, in particular to an ejection device. Background Art

[0002] For some users, setting a ejection device at the bottom of the bed board can meet their sleeping posture preferences. For example, a ejection device is set at the bottom of the bed board corresponding to the waist. When the user lies on the bed, the ejection device pushes out the bed board, so that the bed board lifts the user's waist, thereby meeting the needs.

[0003] In order to reduce costs, the ejection device has only one drive member and one transmission mechanism. The drive member drives the transmission mechanism, and the transmission mechanism lifts the bed board. However, when the user lies on the side, the transmission mechanism is unevenly stressed, and may collapse after reaching a certain level, which poses a risk. Utility Model Content

[0004] The utility model aims to provide an ejection device, which utilizes at least two groups of transmission components to support a bearing component, thereby improving the supporting stability.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Ejector device, comprising:

[0007] Load bearing components and mounting components;

[0008] At least two groups of transmission assemblies are arranged at intervals along the first direction, and are arranged between the bearing assembly and the mounting assembly, each group of the transmission assemblies comprises a first transmission member and a second transmission member which are cross-rotatably connected, the root of the first transmission member is rotatably connected to the mounting assembly, the top of the first transmission member is slidably arranged on the bearing assembly along the first direction, the root of the second transmission member is slidably arranged on the mounting assembly along the first direction, and the top of the second transmission member is rotatably connected to the bearing assembly;

[0009] A transmission rod, the first transmission member of each group of the transmission components is rotatably connected to the transmission rod, or the second transmission member of each group of the transmission components is rotatably connected to the transmission rod;

[0010] The driving member is rotatably connected between the mounting assembly and the transmission rod. When the driving member drives the transmission rod, the bearing assembly can approach or move away from the mounting assembly along a second direction, and the first direction is perpendicular to the second direction.

[0011] As an optional technical solution, each group of the transmission components includes at least two of the first transmission components and at least two of the second transmission components. In the same group of the transmission components, the projections of at least two of the first transmission components in the third direction overlap, and the projections of at least two of the second transmission components in the third direction overlap, and the first direction, the second direction and the third direction are perpendicular to each other.

[0012] As an optional technical solution, each group of the transmission components includes two of the first transmission members and two of the second transmission members.

[0013] As an optional technical solution, in the same group of the transmission components, the two first transmission members are rotatably connected to the two sides of the transmission rod respectively; or

[0014] In the same group of the transmission components, the two second transmission members are rotatably connected to the two sides of the transmission rod respectively.

[0015] As an optional technical solution, the bearing assembly is provided with a first slide groove extending along the first direction, and the top of the first transmission member is slidably arranged in the first slide groove;

[0016] The mounting assembly is provided with a second slide groove extending along the first direction, and the root of the second transmission member is slidably disposed in the second slide groove.

[0017] As an optional technical solution, the supporting component is provided with two first slide grooves spaced along the first direction, and the mounting component is provided with two second slide grooves spaced along the first direction, and the two first slide grooves, two second slide grooves and two groups of transmission components are arranged in one-to-one correspondence.

[0018] As an optional technical solution, the supporting assembly includes a first mounting platform, a second mounting platform, a third mounting platform and a fourth mounting platform arranged in sequence along the first direction, the second mounting platform and the fourth mounting platform are both provided with the first sliding groove, the second mounting platform and the fourth mounting platform are both slidingly connected to the first transmission member, and the first mounting platform and the third mounting platform are both rotatably connected to the second transmission member.

[0019] As an optional technical solution, the supporting assembly also includes a supporting plate and a connecting plate, the connecting plate is detachably installed on the bottom of the supporting plate, and the first mounting platform, the second mounting platform, the third mounting platform and the fourth mounting platform are all installed on the side of the connecting plate away from the supporting plate.

[0020] As an optional technical solution, the body of the driving member is rotatably connected to the mounting assembly, and the output end of the driving member is rotatably connected to the transmission rod.

[0021] As an optional technical solution, the first transmission member includes a first root section, a first transition section and a first top section which are connected in sequence, the first root section is rotatably connected to the mounting assembly, the first top section is slidably arranged on the bearing assembly along the first direction, the first root section is arranged at an angle to the first transition section, and the first top section is arranged at an angle to the first transition section;

[0022] The second transmission member comprises a second root section, a second transition section and a second top section which are connected in sequence, the second root section is slidably arranged on the mounting assembly along the first direction, the second top section is rotatably connected to the bearing assembly, the second root section and the second transition section are arranged at an angle, and the second top section and the second transition section are arranged at an angle;

[0023] The first transition section and the second transition section are cross-arranged and rotationally connected.

[0024] Beneficial effects of the utility model:

[0025] The utility model provides an ejection device, which comprises a bearing assembly, a mounting assembly, at least two groups of transmission assemblies spaced apart along a first direction, a transmission rod and a driving member, wherein the at least two groups of transmission assemblies spaced apart along the first direction are arranged between the bearing assembly and the mounting assembly, each group of transmission assemblies comprises a first transmission member and a second transmission member which are cross-rotatably connected, the root of the first transmission member is rotationally connected to the mounting assembly, the top of the first transmission member is slidably arranged on the bearing assembly along the first direction, the root of the second transmission member is slidably arranged on the mounting assembly along the first direction, and the top of the second transmission member is rotationally connected to the bearing assembly; the first transmission member of each group of transmission assemblies is rotationally connected to the transmission rod, or the second transmission member of each group of transmission assemblies is rotationally connected to the transmission rod; the driving member is rotationally connected between the mounting assembly and the transmission rod, and when the driving member drives the transmission rod, the bearing assembly can approach or move away from the mounting assembly along the second direction, and the first direction is perpendicular to the second direction.

[0026] The utility model utilizes at least two groups of transmission components to support the bearing component, which can improve the support stability, and each group of transmission components includes a first transmission member and a second transmission member that are cross-rotatably connected. The first transmission member and the second transmission member can both support the bearing component, and the stability of the bearing component is further improved.

[0027] The utility model utilizes a transmission rod to connect the transmission components, and the power output by the driving member can be transmitted to each group of transmission components through the transmission rod, so that each group of transmission components can act synchronously; only one driving member needs to be provided, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1It is a structural schematic diagram of the ejection device of the utility model from a first perspective;

[0029] Figure 2 It is a structural schematic diagram of the ejection device of the utility model from a second viewing angle;

[0030] Figure 3 yes Figure 2 A partial enlarged view of position A in the middle;

[0031] Figure 4 It is an exploded view of the electric bed of the utility model.

[0032] In the figure:

[0033] 1. Carrying assembly; 11. First slide; 12. First mounting platform; 13. Second mounting platform; 14. Third mounting platform; 15. Fourth mounting platform; 16. Carrying plate; 17. Connecting plate;

[0034] 21. Second chute; 22. Fifth mounting platform; 23. Sixth mounting platform; 24. Seventh mounting platform; 25. Eighth mounting platform;

[0035] 3. Transmission assembly; 31. First transmission member; 311. First root section; 312. First transition section; 313. First top section; 32. Second transmission member; 321. Second root section; 322. Second transition section; 323. Second top section;

[0036] 4. Transmission rod;

[0037] 5. Driving parts. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] like Figures 1 to 3 As shown, the ejection device provided in this embodiment includes a bearing component 1, a mounting component, at least two groups of transmission components 3 spaced apart along a first direction, a transmission rod 4 and a driving member 5; at least two groups of transmission components 3 spaced apart along the first direction are arranged between the bearing component 1 and the mounting component, each group of transmission components 3 includes a first transmission member 31 and a second transmission member 32 that are cross-rotatably connected, the root of the first transmission member 31 is rotationally connected to the mounting component, the top of the first transmission member 31 is slidably arranged on the bearing component 1 along the first direction, the root of the second transmission member 32 is slidably arranged on the mounting component along the first direction, and the top of the second transmission member 32 is rotationally connected to the bearing component 1; the first transmission member 31 of each group of transmission components 3 is rotationally connected to the transmission rod 4, or the second transmission member 32 of each group of transmission components 3 is rotationally connected to the transmission rod 4; the driving member 5 is rotationally connected between the mounting component and the transmission rod 4, and when the driving member 5 drives the transmission rod 4, the bearing component 1 can approach or move away from the mounting component along the second direction, and the first direction is perpendicular to the second direction.

[0043] This embodiment utilizes at least two groups of transmission components 3 to support the bearing component 1, which can improve the support stability, and each group of transmission components 3 includes a first transmission member 31 and a second transmission member 32 that are cross-rotatably connected. The first transmission member 31 and the second transmission member 32 can both support the bearing component 1, and the stability of the bearing component 1 is further improved.

[0044] In this embodiment, the first direction is the X-axis direction, the second direction is the Z-axis direction, and the third direction is the Y-axis direction.

[0045] This embodiment utilizes the transmission rod 4 to connect the transmission components 3. The power output by the driving member 5 can be transmitted to each group of transmission components 3 through the transmission rod 4, so that each group of transmission components 3 can move synchronously. Only one driving member 5 needs to be set, which is low in cost.

[0046] In this embodiment, the transmission assembly 3 is set into two groups, the main body of the driving member 5 is rotatably installed on the installation assembly, and the output end of the driving member 5 is rotatably connected to the transmission rod 4, and the transmission rod 4 connects the first transmission members 31 in the two groups of transmission assemblies 3; when the output end of the driving member 5 is retracted, the driving member 5 rotates clockwise as a whole, and the transmission rod 4 drives one end of the first transmission member 31 to slide forward along the first direction on the bearing assembly 1. At this time, the first transmission member 31 rotates clockwise, and the bearing assembly 1 approaches the installation assembly. At this time, the bearing assembly 1 descends, and the second transmission member 32 rotates counterclockwise; when the output end of the driving member 5 is extended, the driving member 5 rotates counterclockwise as a whole, and the transmission rod 4 drives one end of the first transmission member 31 to slide reversely along the first direction on the bearing assembly 1. At this time, the first transmission member 31 rotates counterclockwise, and the bearing assembly 1 moves away from the installation assembly. At this time, the bearing assembly 1 rises, and the second transmission member 32 rotates clockwise.

[0047] In some other embodiments, the transmission components 3 are provided in three groups, or four groups or even more.

[0048] In some other embodiments, the second transmission member 32 of each transmission assembly 3 is rotatably connected to the transmission rod 4 .

[0049] The ejection device of this embodiment can be applied to multiple positions of the bed frame, for example, the ejection device is installed in the middle of the bed frame to provide lifting support for the user's waist, or the ejection device is installed at the end of the bed frame to provide lifting support for the user's head.

[0050] In this embodiment, the driving member 5 is a cylinder, a linear electric cylinder, or other linear power members.

[0051] Optionally, each group of transmission components 3 includes at least two first transmission members 31 and at least two second transmission members 32. In the same group of transmission components 3, the projections of at least two first transmission members 31 in the third direction overlap, and the projections of at least two second transmission members 32 in the third direction overlap, and the first direction, the second direction and the third direction are perpendicular to each other.

[0052] In this embodiment, each transmission assembly 3 includes two first transmission members 31 and two second transmission members 32. The projections of the two first transmission members 31 in the third direction overlap, and the projections of the two second transmission members 32 in the third direction overlap, so as to ensure synchronous action and improve support stability. The two first transmission members 31 and the two second transmission members 32 are cross-rotatably connected one by one.

[0053] In this embodiment, in the same transmission assembly 3, two first transmission members 31 are rotatably connected to two sides of the transmission rod 4 respectively, and the two first transmission members 31 do not interfere with each other.

[0054] In this embodiment, the transmission rod 4 is a square cylindrical structure.

[0055] In some other embodiments, in the same transmission assembly 3, the two second transmission members 32 are rotatably connected to the two sides of the transmission rod 4 respectively, and the two second transmission members 32 do not interfere with each other.

[0056] Optionally, the bearing component 1 is provided with a first slide groove 11 extending along the first direction, and the top of the first transmission member 31 is slidably set in the first slide groove 11; the installation component is provided with a second slide groove 21 extending along the first direction, and the root of the second transmission member 32 is slidably set in the second slide groove 21.

[0057] In this embodiment, a first connecting member is slidably arranged in the first sliding groove 11, and the first transmission member 31 and the transmission rod 4 are both rotatably connected to the first connecting member. The first connecting member carries the first transmission member 31 and the transmission rod 4 and drives the first transmission member 31 and the transmission rod 4 to move along the first direction.

[0058] In this embodiment, the second sliding groove 21 is slidably provided with a second connecting member, the second transmission member 32 is rotatably connected to the second connecting member, and the second connecting member carries the second transmission member 32 and drives the second transmission member 32 to move along the first direction.

[0059] Optionally, the bearing component 1 is provided with two first slide grooves 11 spaced apart along the first direction, the mounting component is provided with two second slide grooves 21 spaced apart along the first direction, and the two first slide grooves 11, the two second slide grooves 21 and the two groups of transmission components 3 are arranged in one-to-one correspondence.

[0060] In this embodiment, the supporting assembly 1 includes a first mounting platform 12, a second mounting platform 13, a third mounting platform 14 and a fourth mounting platform 15 which are arranged in sequence along a first direction, the second mounting platform 13 and the fourth mounting platform 15 are both provided with a first slide groove 11, the second mounting platform 13 and the fourth mounting platform 15 are both slidably connected to the first transmission member 31, and the first mounting platform 12 and the third mounting platform 14 are both rotatably connected to the second transmission member 32.

[0061] In this embodiment, the supporting assembly 1 also includes a supporting plate 16 and a connecting plate 17. The connecting plate 17 can be detachably installed at the bottom of the supporting plate 16. The first mounting platform 12, the second mounting platform 13, the third mounting platform 14 and the fourth mounting platform 15 are all installed on the side of the connecting plate 17 away from the supporting plate 16.

[0062] In this embodiment, the mounting assembly includes a fifth mounting platform 22, a sixth mounting platform 23, a seventh mounting platform 24 and an eighth mounting platform 25 which are arranged in sequence along the first direction. The sixth mounting platform 23 and the eighth mounting platform 25 are both provided with a second slide groove 21. The sixth mounting platform 23 and the eighth mounting platform 25 are both slidably connected to the second transmission member 32, and the fifth mounting platform 22 and the seventh mounting platform 24 are both rotatably connected to the first transmission member 31.

[0063] Optionally, the body of the driving member 5 is rotatably connected to the mounting assembly, and the output end of the driving member 5 is rotatably connected to the transmission rod 4 .

[0064] Optionally, the first transmission member 31 includes a first root segment 311, a first transition segment 312 and a first top segment 313 connected in sequence, the first root segment 311 is rotatably connected to the mounting assembly, the first top segment 313 is slidably arranged on the support assembly 1 along the first direction, the first root segment 311 and the first transition segment 312 are arranged at an angle, and the first top segment 313 and the first transition segment 312 are arranged at an angle; the second transmission member 32 includes a second root segment 321, a second transition segment 322 and a second top segment 323 connected in sequence, the second root segment 321 is slidably arranged on the mounting assembly along the first direction, the second top segment 323 is rotatably connected to the support assembly 1, the second root segment 321 and the second transition segment 322 are arranged at an angle, and the second top segment 323 and the second transition segment 322 are arranged at an angle; the first transition segment 312 and the second transition segment 322 are cross-arranged and rotatably connected.

[0065] The first root section 311 is set at an angle with the first transition section 312, the first top section 313 is set at an angle with the first transition section 312, and the second root section 321 is set at an angle with the second transition section 322, and the second top section 323 is set at an angle with the second transition section 322, so that the first transmission member 31 and the second transmission member 32 both form a Z-shaped structure, ensuring that the first transmission member 31 itself and the second transmission member 32 itself will not be blocked or interfered by the bearing component 1 or the installation component, for example, the first top section 313 will not touch the sixth mounting platform 23 or the eighth mounting platform 25, and the second top section 323 will not touch the fifth mounting platform 22 or the seventh mounting platform 24.

[0066] like Figure 4 As shown, this embodiment also provides an electric bed, which includes a bed frame and the ejection device as described above.

[0067] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Ejection device, characterized in that: include: A bearing assembly (1) and a mounting assembly; At least two groups of transmission components (3) are arranged at intervals along the first direction, and are arranged between the bearing component (1) and the mounting component. Each group of the transmission components (3) comprises a first transmission member (31) and a second transmission member (32) which are cross-rotatably connected. The root of the first transmission member (31) is rotatably connected to the mounting component, and the top of the first transmission member (31) is slidably arranged on the bearing component (1) along the first direction. The root of the second transmission member (32) is slidably arranged on the mounting component along the first direction, and the top of the second transmission member (32) is rotatably connected to the bearing component (1). a transmission rod (4), wherein the first transmission member (31) of each group of the transmission components (3) is rotationally connected to the transmission rod (4), or the second transmission member (32) of each group of the transmission components (3) is rotationally connected to the transmission rod (4); A driving member (5) is rotatably connected between the mounting assembly and the transmission rod (4); when the driving member (5) drives the transmission rod (4), the bearing assembly (1) can approach or move away from the mounting assembly along a second direction, and the first direction is perpendicular to the second direction.

2. The ejection device according to claim 1, characterized in that: Each group of the transmission components (3) comprises at least two of the first transmission components (31) and at least two of the second transmission components (32); in the same group of the transmission components (3), the projections of at least two of the first transmission components (31) in the third direction overlap, the projections of at least two of the second transmission components (32) in the third direction overlap, and the first direction, the second direction and the third direction are perpendicular to each other.

3. The ejection device according to claim 2, characterized in that: Each group of the transmission components (3) comprises two of the first transmission components (31) and two of the second transmission components (32).

4. The ejection device according to claim 3, characterized in that: In the same group of the transmission components (3), the two first transmission members (31) are rotatably connected to the two sides of the transmission rod (4) respectively; or In the same group of the transmission components (3), the two second transmission members (32) are rotatably connected to the two sides of the transmission rod (4) respectively.

5. The ejection device according to any one of claims 1 to 4, characterized in that: The bearing assembly (1) is provided with a first slide groove (11) extending along the first direction, and the top of the first transmission member (31) is slidably arranged in the first slide groove (11); The mounting assembly is provided with a second slide groove (21) extending along the first direction, and the root of the second transmission member (32) is slidably arranged in the second slide groove (21).

6. The ejection device according to claim 5, characterized in that: The bearing assembly (1) is provided with two first slide grooves (11) spaced apart along the first direction, the mounting assembly is provided with two second slide grooves (21) spaced apart along the first direction, and the two first slide grooves (11), the two second slide grooves (21) and the two groups of transmission assemblies (3) are arranged in a one-to-one correspondence.

7. The ejection device according to claim 5, characterized in that: The bearing assembly (1) comprises a first mounting platform (12), a second mounting platform (13), a third mounting platform (14) and a fourth mounting platform (15) which are sequentially arranged along the first direction; the second mounting platform (13) and the fourth mounting platform (15) are both provided with the first sliding groove (11); the second mounting platform (13) and the fourth mounting platform (15) are both slidably connected to the first transmission member (31); and the first mounting platform (12) and the third mounting platform (14) are both rotatably connected to the second transmission member (32).

8. The ejection device according to claim 7, characterized in that: The bearing assembly (1) further comprises a bearing plate (16) and a connecting plate (17); the connecting plate (17) is detachably mounted on the bottom of the bearing plate (16); the first mounting platform (12), the second mounting platform (13), the third mounting platform (14) and the fourth mounting platform (15) are all mounted on a side of the connecting plate (17) facing away from the bearing plate (16).

9. The ejection device according to any one of claims 1 to 4, characterized in that: The body of the driving member (5) is rotatably connected to the mounting assembly, and the output end of the driving member (5) is rotatably connected to the transmission rod (4).

10. The ejection device according to any one of claims 1 to 4, characterized in that: The first transmission member (31) comprises a first root section (311), a first transition section (312) and a first top section (313) which are connected in sequence, the first root section (311) is rotatably connected to the mounting assembly, the first top section (313) is slidably arranged on the bearing assembly (1) along the first direction, the first root section (311) and the first transition section (312) are arranged at an angle, and the first top section (313) and the first transition section (312) are arranged at an angle; The second transmission member (32) comprises a second root section (321), a second transition section (322) and a second top section (323) which are connected in sequence, the second root section (321) is slidably arranged on the mounting assembly along the first direction, the second top section (323) is rotatably connected to the bearing assembly (1), the second root section (321) and the second transition section (322) are arranged at an angle, and the second top section (323) and the second transition section (322) are arranged at an angle; The first transition section (312) and the second transition section (322) are cross-arranged and rotationally connected.

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